JP2767064B2 - Coil sorting method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a coil that sorts a plurality of integrated coils into single units and changes the direction of the coils in order to match the winding direction of the coils. The present invention relates to a sorting device.

[Conventional technology]

The steel sheet coil is formed by applying various surface treatments to the thin steel sheet sent from the rolling process, cutting a plurality of the steel sheets in the longitudinal direction, and winding up the thin steel sheets to form a plurality of coils. These coils are transferred and transported as a group to the trolley side of the suspension transport device. The coils of one group conveyed in this way have the same or different widths, but it is necessary to sort them into individual coils.

Conventionally, in order to sort these coils, a plurality of coils were transported to a sorting place, lowered on a coil table, and each coil was sorted by hanging a ball on a lifting device, and lifted by a lifting machine such as an overhead crane. Later, it was transferred to the hook on the unloading line.

Further, when a rewinding process is applied to a steel sheet coil, it is necessary to change the direction of the coil so that the winding direction is constant. Conventionally, when changing the direction of the coil, when the coil is transported by a truck, the truck is placed on a turntable,
The direction of the coil on the trolley is changed by rotating the turntable. In the case of carrier transportation in which the coil is suspended from the hook and transported, the entire carrier on which the hook is supported is rotated by the turntable. Have gone.

[Problems to be solved by the invention]

In conventional means for sorting a plurality of coils for each unit, when suspending a coil on a hook, the center of the width of the coil is the center of the suspension position of the hook because the coil must be transported in a stable position. It must be located at the lowering center. As described above, the width of the coil is not constant. Therefore, according to the conventional means, the coil width has to be measured one by one in order to perform the alignment between the coil and the hook.

Further, in this conventional means, since the coil is handled by the operator, there is a problem in work efficiency and safety. Furthermore, there are still problems in quality control of the coil, such as deforming or damaging the winding shape of the coil because the coil is hung by a hanging tool.

In the conventional means for changing the direction of the coil, when the bogie is turned by a turntable, it is generally used without any particular problem. Since it is necessary to change the direction, not only the power supply method and the control method become complicated, but also the entire apparatus becomes large and the equipment cost increases.

The present invention has been made in view of such a problem, and it is possible to automatically sort a plurality of coils individually and transfer them to a hook of an unloading line, and easily change the direction of the coils. It is an object of the present invention to provide a coil sorting method and apparatus which can be performed.

[Means for solving the problem]

As a means for this, a loading mechanism 1 for integrally holding a plurality of coils C and holding them by a loading hook 4 and loading them to a predetermined position, and a transfer mechanism for holding a plurality of coils C individually in a frame 5 and transferring them to a predetermined position. A mechanism 2 and an unloading mechanism 3 for receiving and unloading the coil C of the transfer mechanism 2 with the unloading hook 6.

At the tip of the frame 5 of the transfer mechanism 2, each coil C of the carry-in hook 4 is transferred so that the center of the single coil C is aligned with the hanging center 8 of the carry-out hook 6.
Is provided with a position detector 7 for detecting the front end and the rear end.

In order to unify the winding direction of the coil C, the frame 5 of the transfer mechanism 2 can be turned at least 180 degrees.

[Action]

 The operation of the present invention will be described with reference to the drawings.

First, as shown in FIG. 1, a plurality of coils C are held together by a carry-in hook 4 of the carry-in mechanism 1 and carried into a predetermined position. Next, the transfer mechanism 2 moves forward, receives the coil C located closest to the front of the plurality of coils C held by the carry-in hook 4 on the frame 5, moves backward, and unloads the coil C from the unloading mechanism 3. Transfer to hook 6. The transfer mechanism 2 which has completed the transfer of the coil C moves forward again, receives the next coil C of the carry-in hook 4, moves backward, and moves forward to stop the next carry-out hook 6 at a fixed position. It is transferred to. By repeating such an operation, the plurality of coils C of the carry-in hook 4 are sorted into the carry-out hook 6 for each unit.

When the frame 5 of the transfer mechanism 2 receives the coil C of the loading hook 4, the position detector 7 is provided at the front end of the frame 5, and the position detector 7 detects the front end and the rear end of the coil C. Then, the distance from the coil suspension center 8 of the unloading hook 6 to the coil C and the width of the coil C are measured, and the transfer mechanism 2 is retracted by the distance calculated from the distance. It can be transferred to the center 8.

That is, by moving the transfer mechanism 2 and first detecting the front end of the coil C, the distance from the suspension center 8 of the stationary unloading hook 6 to the front end of the coil C is measured. When the distance to the rear end of the coil C is measured, the traveling of the transfer mechanism 2 is stopped, and the coil C is moved to the frame 5. By doing so, the coil width B is calculated, and the distance X between the center of the coil width B and the hanging center 8 of the unloading hook 6 is calculated from the distance Y from the hanging center 8 of the unloading hook 6 to the rear end of the coil C. Subtract half of the coil width B, that is, X = Y−B / 2. By retreating the transfer mechanism 2 by the distance obtained by this formula, the coil C can be transferred to a state where the center of the coil C is aligned with the suspension center 8 of the unloading hook 6.

When the frame 5 of the transfer mechanism 2 can be turned 180 degrees, after the coil C of the loading hook 4 is received, the coil C is turned by 180 degrees to change the direction of the coil C so that the winding direction of the coil C is predetermined. It can be unified in the direction.

When the transfer mechanism 2 rotates 180 ° between the carry-in mechanism 1 and the carry-out mechanism 3, to transfer the coil C in a state where the coil C is aligned with the hanging center 8 of the carry-out hook 6, the rotation of the frame 5 is required. Assuming that the resulting movement amount of the center of the coil C is Z (see FIG. 7), the transfer mechanism 2 may be moved backward by X = Y−B / 2−Z.

〔Example〕

 1 to 5 show an embodiment of the present invention.

The loading mechanism 1 includes a loading hook 4 that holds the coil C,
It is configured so that it can run freely on the carry-in rail 10 via two supports 11. The loading hook 4 is substantially L-shaped, and a plurality of coils C are hung on a horizontal portion thereof.
The horizontal portion is a bifurcated carry-in fork 12.

The unloading mechanism 3 includes an unloading hook 6 on which the coil C is transferred.
Are mounted on the carry-out rail 13 via the traveling body 14 so as to be able to travel freely. The carry-out hook 6 has a substantially inverted L-shape, and its horizontal portion is a bifurcated carry-out fork 15.

The transfer mechanism 2 is configured by assembling a frame 5 for transferring the coil C of the carry-in hook 4 to the carry-out hook 6 to a carriage 16 that can travel on a transfer rail 20. The frame 5 is plate-shaped and can be freely inserted between the fork 12 and the fork 15. As shown in FIGS. 2 and 3, a position detector 7 for detecting the front end and the rear end of each coil C of the carry-in hook 4 is provided at the front end of the frame 5.

The frame 5 is provided with a lifting / lowering device 17 provided on a carriage 16.
It is set to be able to move up and down freely. That is, by driving the lifting / lowering device 17, the frame 5 is lowered in advance to a height at which the frame 5 can enter the inside diameter of the coil C held by the loading hook 4, and the frame 5 is
After moving into the inside diameter, the lifting / lowering device 17 is driven again to slightly lift the coil C as shown in FIG. Then, after the carriage 16 is moved backward by a predetermined distance in this state, the frame 5 is driven by the elevation device 17.
And the coil C is transferred to the unloading hook 6. In order to stabilize the vertical movement of the frame 5, a vertical shaft 18 is mounted on the frame 5, and the vertical shaft 18 is guided by a vertical guide 19.

Further, the frame 5 is movable forward and backward by a forward / backward moving device 21 provided above the lifting / lowering device 17. That is, when the position detector 7 provided at the tip of the fork detects the rear end of the coil C of the carry-in hook 4, the carriage 16 is stopped. Therefore, as shown in FIG. The bogie 16 stops while the vessel 7 has entered between the first coil C and the next coil C or into the next coil C. In this situation,
In order to transfer the coil C in a state where it is accurately aligned with the hanging center 8 of the unloading hook 6, the position detector 7 needs to be aligned with the rear end of the coil C. Therefore, as shown in FIG. 2, the motor 22 of the advance / retreat device 21 is driven to
Ball screw supported on bearing 25 via coupling 24
The frame 5 is retracted by screwing the ball screw 26 onto the ball screw 26 and moving the ball nut 27 assembled to the frame 5. The retreat of the frame 5 is achieved by the linear slide 28 moving along the frame rail 29. Further, a stopper 30 is provided to set the forward end position of the frame 5.

In addition to the position detector 7, a deformation detector 9 for detecting the deformation of the coil C is provided at the end of the frame 5 of the transfer unit. The deformation detector 9 is configured using a distance measurement sensor that detects that the coil C is not deformed if the inner diameter of the coil C is within a certain distance. By detecting the deformation of the coil C by the deformation detector 9, necessary countermeasures are taken and automation of the transfer of the coil C is more reliably achieved.

 6 to 8 show another embodiment.

This is such that the frame 5 of the transfer mechanism 2 can be turned 180 degrees. The turning of the frame 5 is achieved by transmitting the rotation of the turning motor 31 to the turning gear 33 via the transmission gear 32. Note that a lock device 34 is provided to maintain the posture of the frame 5 turning 180 degrees.

The frame 5 of the transfer mechanism 2 is provided with the coil C of the loading hook 4.
Is received, the coil C retreats until it completely comes out of the carry-in hook 4, then turns 180 degrees, resumes the retreat by a predetermined distance after the turn, and aligns the coil C with the hanging center 8 of the carry-out hook 6. It will be reprinted.
Thereby, the winding directions of the coils C can be made the same. The frame 5 may be turned in a fixed direction of 360 degrees in addition to the normal and reverse directions of 180 degrees as in this embodiment.

〔The invention's effect〕

As described above, according to the present invention, a plurality of coils can be automatically sorted into a single unit and carried out, so that there is no need to rely on manual work and mechanical work of a worker as in the related art, and thus the work efficiency can be reduced. And safety can be improved.

In addition, by providing the position detector, coils having different widths can be accurately hung to the hanging centers of the unloading hooks, respectively, whereby the coils can be safely unloaded in a stable posture. And, by providing the deformation detector, the deformation of the coil can be automatically detected, and by taking necessary countermeasures,
Automation of coil sorting can be further ensured.

Furthermore, since the frame of the transfer section is freely rotatable at least 180 degrees, many excellent effects are exhibited, such as easily changing the coil winding direction by changing the coil direction.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the apparatus of the present invention, FIG. 2 is a side view showing an embodiment of a hook of a transfer section, FIG. 3 is a front view showing a tip of the hook, and FIG. FIG. 5 is a side view showing the movement when the frame receives the coil of the loading hook, and FIG. 5 is a side view showing the positional relationship between the frame and the coil of the loading hook. FIG. 6 shows another embodiment of the apparatus of the present invention, and is a plan view of a transfer section, and FIGS. 7 and 8 are side views thereof. Description of reference numerals 1: carry-in mechanism, 2: transfer mechanism, 3: carry-out mechanism, 4: carry-in hook, 5: frame, 6: carry-out hook, 7: position detector, 8: hanging center, 9:
Deformation detector, 10: carry-in rail, 11: support, 12: carry-in fork, 13: carry-out rail, 14: traveling body, 15: carry-out fork, 16: bogie, 17: lifting / lowering device, 18: lifting shaft , 19: Elevation guide, 20:
Transfer rail, 21: retraction device, 22: motor, 23: reducer, 24: coupling, 25: bearing, 26: ball screw, 27: ball nut, 2
8: Linear slide, 29: Frame, 30: Stopper, 31: Swing motor, 32: Transmission gear, 33: Swing gear, 34: Lock device.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Susumu Kono 4-17-88 Tsurumi, Tsurumi-ku, Osaka-shi, Osaka Inside Tsubakimoto Chain Co., Ltd. (56) References JP-A-63-93425 (JP, A) (58) ) Surveyed field (Int.Cl. ⁶ , DB name) B21C 45/24 B65H 19 / 12,19 / 30

Claims (3)

(57) [Claims] A loading mechanism (1) for integrally holding a plurality of coils (c) with a loading hook (4) and loading the coils to a predetermined position; 5) a transfer mechanism (2) for holding and transferring the coil (c) of the transfer mechanism (2) to a predetermined position, receiving and carrying out the coil (c) of the transfer mechanism (2) by an unloading hook (6), and loading the coil into the unloading hook (6). An unloading mechanism (3) provided with a position detector (7) for detecting a front end and a rear end of the coil (c) of the hook (4).
And measuring the distance from the suspension center (8), which is the center of the coil suspension position of the unloading hook (6), to the front end and the rear end of the coil (c). c) The distance of the coil suspension center (8) of the unloading hook (6) is calculated from the center of the width, the retreat amount of the transfer mechanism 2 is set from the distance, and the coil (c) is set to the width. A coil sorting method in which the center is positioned and transferred to the coil suspension center (8) of the unloading hook (6). 2. A loading mechanism (1) for integrally holding a plurality of coils (c) by a loading hook (4) and loading the coils to a predetermined position; 5) a transfer mechanism (2) for holding and transferring the coil (c) of the transfer mechanism (2) to a predetermined position; an unloading mechanism (3) for receiving and unloading the coil (c) of the transfer mechanism (2) by an unloading hook (6); The loading hook (5) provided at the tip of the frame (5) of (2), for transferring the single coil (c) with its width center aligned with the coil suspension center (8) of the unloading hook (6). 4) A coil sorting device comprising: a position detector (7) for detecting a front end and a rear end of each coil (c). 3. The coil sorting device according to claim 2, wherein the frame (5) of the transfer mechanism (2) is rotatable at least 180 degrees.